如何检测php运行速度_这是检查正在运行PHP版本的方法

快来打我* 2022-12-06 15:29 58阅读 0赞

如何检测php运行速度

If you can't get something to work and think it might be because you have the wrong version of [PHP][], there's a really simple way to check the current version.

如果您无法使用某些功能，并认为可能是因为您使用了错误的[PHP][]版本，则有一种非常简单的方法来检查当前版本。

Different versions of PHP may have different default settings, and in the case of newer versions, might have new functions.

不同版本PHP可能具有不同的默认设置，而在较新版本的情况下，可能具有新功能。

If a PHP tutorial is giving instructions for a particular version of PHP, it's important to understand how to check the version you have installed.

如果PHP教程给出了特定版本PHP的说明，那么了解如何检查已安装的版本非常重要。

## 如何检查PHP版本 **(** How to Check the PHP Version **)** ##

Running a simple PHP file will not only tell you your PHP version but an abundance of information about all your PHP settings. Just put this single line of PHP code in a blank text file and open it on the server:

运行一个简单PHP文件不仅会告诉您您PHP版本，而且还会提供有关所有PHP设置的大量信息。 只需将这行PHP代码放入空白文本文件中，然后在服务器上将其打开：

<?php phpinfo() ?>

Below is how to check the locally installed version of PHP. You can run this in Command Prompt in Windows or Terminal for Linux/macOS.

以下是如何检查本地安装PHP版本。 您可以在Windows或Linux / macOS的终端的命令提示符中运行此命令。

php -v

Here's an example output:

这是示例输出：

PHP 5.6.35 (cli) (built: Mar 29 2018 14:27:15)
    Copyright (c) 1997-2016 The PHP Group
    Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies

## Windows中未显示PHP版本吗？ **(** Is the PHP Version Not Showing in Windows? **)** ##

Given that you actually are [running PHP on your web server][], the most common reason for the version of PHP not showing up is if the path to PHP is not set up with Windows.

鉴于您实际上是[在Web服务器上运行PHP][running PHP on your web server] ，因此未显示PHP版本的最常见原因是Windows上未设置PHP路径。

You might [see the error][] like this if the correct environment variable isn't configured:

如果未配置正确的环境变量，您可能会[看到这样的错误][see the error] ：

‘php.exe’ is not recognized as an internal or external command, operable program or batch file.

In a Command Prompt, type the following command, where the path after "C:" is the path to PHP (yours may be different):

在命令提示符中，键入以下命令，其中“ C：”之后的路径是PHP的路径(您可能有所不同)：

set PATH=%PATH%;C:\php\php.exe

> 翻译自: [https://www.thoughtco.com/what-version-of-php-running-2694207][https_www.thoughtco.com_what-version-of-php-running-2694207]

如何检测php运行速度

[PHP]: https://www.thoughtco.com/beginners-guide-to-php-programing-2693961
[running PHP on your web server]: https://www.thoughtco.com/do-i-have-php-2694204
[see the error]: https://www.thoughtco.com/php-code-showing-instead-of-running-2694209
[https_www.thoughtco.com_what-version-of-php-running-2694207]: https://www.thoughtco.com/what-version-of-php-running-2694207